9" PTX Trainer Attachment Guide
The 9" PTX Trainer attachment in Call of Duty: Modern Warfare 2 and Warzone 2 is Weapons Platform Specific. In other words, this weapon barrel is exclusive to a particular family of weapons.
How to Get the 9" PTX Trainer
To unlock the 9" PTX Trainer attachment in Call of Duty: Warzone 2.0, you need to upgrade the ISO 45 to Level 10.